Blood testing apparatus



FIG. 1 is a right side, front perspective view of a blood testing apparatus illustrating our new design;

FIG. 2 is a left side, rear perspective view of FIG. 1 thereof;

FIG. 3 is a front view of FIG. 1 thereof;

FIG. 4 is a rear view of FIG. 1 thereof;

FIG. 5 is a bottom plan view of FIG. 1 thereof;

FIG. 6 is a top plan view of FIG. 1 thereof; and,

FIG. 7 is a left side view of FIG. 1 thereof, the right side being the same.

The broken lines in the drawing views illustrate portions of the blood testing apparatus that form no part of the claimed design. 

CLAIM The ornamental design for a blood testing apparatus, as shown and described. 